<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>盒子模型-阴影</title>
    <style>
            div{
                width: 200px;
                height: 80px;
                background-color: orange;
                margin: auto;
                box-shadow: 2px 5px 10px 1px rgba(0,0,0,0.5) inset;

            }
    </style>
</head>
<body>
    <div></div>
</body>
</html>